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What data structure is commonly used to implement Dijkstra's algorithm efficient

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Question: What data structure is commonly used to implement Dijkstra\'s algorithm efficiently?

Options:

  1. Array
  2. Linked List
  3. Priority Queue
  4. Stack

Correct Answer: Priority Queue

Solution: 

A priority queue is used in Dijkstra\'s algorithm to efficiently retrieve the next node with the smallest tentative distance.

What data structure is commonly used to implement Dijkstra's algorithm efficient

Practice Questions

Q1
What data structure is commonly used to implement Dijkstra's algorithm efficiently?
  1. Array
  2. Linked List
  3. Priority Queue
  4. Stack

Questions & Step-by-Step Solutions

What data structure is commonly used to implement Dijkstra's algorithm efficiently?
  • Step 1: Understand that Dijkstra's algorithm is used to find the shortest path in a graph.
  • Step 2: Recognize that the algorithm needs to keep track of nodes and their distances from the starting point.
  • Step 3: Realize that a priority queue is a special data structure that allows us to efficiently get the node with the smallest distance.
  • Step 4: Learn that the priority queue helps in quickly updating and retrieving nodes as the algorithm progresses.
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